var video = document.getElementById('video'),
play = document.getElementById('play'),
time;
video.addEventListener('webkitbeginfullscreen', function() {
play.innerText = 'Play Video Readers';
window.clearInterval(time);
});
video.addEventListener('webkitendfullscreen', function() {
video.pause();
});
play.addEventListener('touchstart', function() {
time = window.setInterval(function() {
try {
video.webkitEnterFullscreen();
}
catch(e) {}
}, 250);
play.innerText = 'loading ...';
video.play();
});